Wuxi Guanya Refrigeration technology co., ltd
Tel: + 86 510 82303782
E-mail: sales@cnzlj.com
Add: No.10, Zhenfa No.1 Road, Shuofang Street, New District, Wuxi, Jiangsu, China
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Direct-Cooled Ultra-Low Temperature Freezer -150 Degree

Direct-Cooled Ultra-Low Temperature Freezer -150 Degree

  • Direct-Cooled Ultra-Low Temperature Freezer -150 Degree
  • Ultra-Low Temp. Water-Cooled Chiller-3.JPG
  • Ultra-Low Temp. Water-Cooled Chiller-2.JPG
  • Ultra-Low Temp. Water-Cooled Chiller-1.JPG
Direct-Cooled Ultra-Low Temperature Freezer -150 Degree

  • Product Description
  • Knowledge Center


1.Temperature ranges from - 5 ~ - 150 degrees, can meet different temperature
2. Adopt environmental protection refrigerants
3. Famous brand semi-closed piston compressor, semi-closed bipolar piston compressor, semi-hermetic screw compressor, main brand are BOCK. Bitzer, Copeland, Handbell, fusheng; Plate heat exchanger, Small volume, High efficiency
4. Top imported cold controller(DANFOSS pressure controller, balance valve, expansion valve, solenoid valve, filter drier, Emerson oil separator, ALCO liquid mirror, check valve, etc.)
5. Generator cooling water circuit uses intermediate heat exchanger, improve system reliability and safety.
6. DANFOSS electronic expansion valve, high precision control;
7. Adopt Siemens PLC S7-200/300, LNEYA touch screen, automatic control, temperature curve display, temperature record U disk, fault alarm;
8. Large cooling capacity adopts semi-hermetic screw compressor, electronic expansion valve control, high efficiency and energy saving;
9. Offer machine installation and system test, users only need to finish the installation of refrigerant and cooling water;
10. Factory testing: each refrigerating unit is on load test of not less than
11. hours in the factory.
LNEYA application LNEYA application
Model SLJ-3W
-120℃ 3kw 4kw 6kw 11kw
-135℃ 2.5kw 3.3kw 5kw 9kw
Evaporator space 2㎡ 2.8㎡ 4㎡ 7.8㎡
Evaporator ᵠ16*40m ᵠ22*40m ᵠ28*45m ᵠ28*45m*2
Connection size ᵠ16 ball mouth ᵠ16 ball mouth ᵠ16 ball mouth ᵠ16 ball mouth
Operation Panel 7-inch color touch screen controller, temperature curve record, data export to excel format.
Control system Standard:single-ship microcomputer controller, Stepping control; Set temperature difference of refrigeration
on&off.Optional:SIEMENS S7-200PLC&module
Condensor KAORI Plate heat exchanger
Intermediate heat exchanger KAORI Plate heat exchanger
Drying filter core Danfoss
Expansion valve Emerson
FDF Emerson
Oil separator Emerson
Pressure protector Emerson
Reservoir Standard: RSP Optional: Emerson
Sight glass Standard: SANHUA Optional: Danfoss
Refrigeration ball valve Standard: SANHUA Optional: Danfoss
Electric Schneider AC contactor, Schneider intermediate relay
Refrigerant R404A R508B R14 R50 mixed refrigerant
Safety protection High pressure protect;Water-supply cut-off protection;Over-current protection;Leakage protection;
Sequential and phase failure protection;High temperature protection;sensor failure protection;
liquid low level protection etc.multi-safety protection.
Piping material Copper pipe
Case material SUS 304
Water-cooled type W
(cooling water at 20℃)
3m³/h 4m³/h 6m³/h 10m³/h
Power 380V 50HZ 12kw 380V 50HZ 16kw 380V 50HZ 24kw 380V 50HZ 36kw
Connection 750*750*1750 750*750*1750 1000*950*20500 1200*1100*2050
Weight 350kg 400kg 600kg 950kg
db within 75db within 80db
why choose lneya
The maintenance and maintenance of an ultra-low temperature refrigerator are very important for normal usage and prolonging its life. If the inaccurate temperature control often results in the damage of the protected objects, which will greatly affect the experimental results, thus affecting the normal progress of the research work.

1. Clean it once a month to ensure its cleanliness
Remove the dust on the inside and outside of the refrigerator and accessories by a dry cloth. If the refrigerator is too dirty, use a neutral detergent and rinse thoroughly after cleaning. But remember not to flush the upper and inside of the refrigerator, otherwise, the insulating material will get damaged and fail later. Lubricants are not necessary for compressors and other mechanical parts. The cleaning of an electric fan in the rear of the clean compressor must be careful. After the cleaning, make a safety check to ensure that the plug of the fridge is inserted and not virtual connected. There is no abnormal heat in the plug, as well as the power cord and distribution wire on the back of the refrigerator, are not broken and nicked.

2. The cooling of the refrigerator is not sufficient
Check whether there is ice on the surface of the evaporator; whether or not the door of the refrigerator is over - frequency; whether the back of the refrigerator is in contact with the wall; whether or not there is too much stuff on.

3. The refrigerator is too noisy
Check whether the baseboard and the refrigerator are stable if not, adjust the movable screws to make the four corners firmly support on the floor. And make sure whether the back of the refrigerator is touched by something.
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  • EMAIL:sales@cnzlj.com
  • ADDRESS:No.10, Zhenfa No.1 Road, Shuofang Street, New District, Wuxi, Jiangsu, China